Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“I also love the reminders to study because I'm a bit of a procrastinator.”
Google Play · 5/5 · 2026-08-02

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 2907673729

Proof data

Record hash (SHA-256): 69ff353c457ec8a74920f48f8c620fbf437610f77a34bd7ff5bc666fe0ff5c16
Signature (Ed25519, base64): gJQhVaKX5veU75SnIVLvhRBx3VcQtDeZCrquZOg6hCZ78sXExOoF4nkOi+ghpWsqs6bi9aHxcPomoBL+Zpk8DQ==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["69fcec43ae3382fddf3c3c22a21b5f114af0dd6ba54dbf6a4cf6be1380be2cb4","0bfcf7e07e396467c54c70ba5ce5093e89b4aaccea48d91aba89b431a3517073","71faeb0ec6c409c8ec44641e4802d76f5fcc1cdbaa9ec562d42a2bdc2e4d454c","3bd377e9ef4d2eeaed6afa9a4e2b71d7dd128e98c7bc03e79c9912ab9d0d5659","57f7e7fab7e929257b078f2fe759fc8307802df0e7cce456bf8aabb3efe37217","324c11b571f1f2eb09672ed349579c027775bdd1ab7a9c8077931470c6a737fe","a6067b6acd53e1fe624a5bae59bf9640cc82e02e4053275f6cf161030af43a63","85f473d6ca2ca461ce6f4ae62c768bed26e6075a33d0cd04dd18be5ef418706c","366d96074c9f3d6bc0fccbad7f99f224495885641584f6e769891ae9cd722517","ce682cb5abf93d908c06a0a0357785c4f241ac5d7bd85c82abf3c9beea85b725","d34d9bdeaf35840444664f9988f9e353271b0e025606c586244ce40ed001b13f","40bd9581780e3da9ba474021971a27a2b963126bf33adecf2de39d29e5b5c2dc","bcc0d977b8ab2060a87584efe5d0f5545e840726716d3f02c248db108122259f","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]
Anchored: 2026-09-22
Public log entry: search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash: bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:vaia/communication/en","quote":"I also love the reminders to study because I'm a bit of a procrastinator.","rating":5,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (b9a08f9d6d76…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.